" I suppose, Watson, we must look upon you as a man of letters,” said he. “How do you define the word ‘grotesque’?”
   “Strange—remarkable,” I suggested.
   He shook his head at my definition.
   “There is surely something more than that,” said he; “some underlying suggestion of the tragic and the terrible. If you cast your mind back to some of those narratives with which you have afflicted a long-suffering public, you will recognize how of- ten the grotesque has deepened into the criminal. "

― Arthur Conan Doyle , His Last Bow (Sherlock Holmes, #8)